PC 386 CE (IPB1) Motherboard Settings and Configuration
DIGITAL EQUIPMENT CORPORATION
PC 386 CE (IPB1)
Processor | 80386SX |
Processor Speed | 16MHz |
Chip Set | Unidentified |
Video Chip Set | None |
Maximum Onboard Memory | 4MB |
Maximum Video Memory | None |
Cache | None |
BIOS | Unidentified |
Dimensions | 220mm x 220mm |
I/O Options | External memory slots (2), floppy drive interface, SCSI interface, parallel port, serial ports (2) |
NPU Options | 80387 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Front panel connector | P1 | Serial port | P8 |
Speaker | P2 | Serial port | P9 |
Floppy drive interface | P4 | SCSI interface | J19 |
External battery | P6 | External memory slots | SL1 & SL2 |
Parallel port | P7 | ||
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
» | Factory configured - do not alter | J1 | Unidentified |
» | Factory configured - do not alter | J2 | Unidentified |
» | Factory configured - do not alter | J3 | Unidentified |
» | Speaker volume select normal volume | W1 | Open |
Speaker volume select low volume | W1 | Closed | |
» | SCSI clock speed select 8MHz | W11 | Pins 1 & 2 closed |
SCSI clock speed select 16MHz | W11 | Pins 2 & 3 closed | |
» | Floppy drive pre-compensation mode 125ns | W13 | Open |
Floppy drive pre-compensation mode 187ns | W13 | Closed | |
» | Logic ground is connected to chassis ground | W20 | Closed |
Logic ground is not connected to chassis ground | W20 | Open | |
» | Parallel port IRQ select IRQ5 | W21 | Pins 1 & 2 closed |
Parallel port IRQ select IRQ7 | W21 | Pins 2 & 3 closed | |
Normal mode enabled | SW1/1 | Off | |
Manufacturing mode enabled | SW1/1 | On | |
PC mode enabled | SW1/2 | Off | |
Terminal server mode enabled | SW1/2 | On | |
Video speed select slow | SW2/1 | Off | |
Video speed select fast | SW2/1 | On | |
Monitor type select color | SW2/2 | On | |
Monitor type select monochrome | SW2/2 | Off | |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
1MB | 1MB | None | None | None |
2MB | 1MB | (1) 1M x 9 | None | None |
3MB | 1MB | (1) 1M x 9 | (1) 1M x 9 | None |
4MB | 1MB | (1) 1M x 9 | (1) 1M x 9 | (1) 1M x 9 |
Note: Bank 0 is factory installed and is not configurable. | ||||
DRAM JUMPER CONFIGURATION | ||
Size | W2 | W3 |
1MB | Open | Open |
2MB | Closed | Open |
3MB | Open | Closed |
4MB | Closed | Closed |
FLOPPY DRIVE SELECTION | ||||
Setting | W4 | W6 | W7 | |
| » | Enabled | Closed | Closed | Closed |
Disabled | Open | Open | Open | |
FLOPPY DRIVE MOTOR SPEED SELECTION | |||
Speed | W10 | W12 | |
| » | Single | Pins 2 & 3 closed | Pins 2 & 3 closed |
Dual | Pins 1 & 2 closed | Pins 1 & 2 closed | |
SCSI INTERRUPT SELECTION | |||
IRQ | W14 | W15 | W16 |
IRQ10 | Open | Open | Closed |
IRQ12 | Open | Closed | Open |
IRQ14 | Closed | Open | Open |
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